Erbijsommen tot 20
Erbijsommen
|
1.
15 + 2 =
17
6
|
2.
7 + 5 =
12
11
|
3.
7 + 9 =
16
6
|
4.
18 + 2 =
20
8
|
|
5.
20 + 0 =
2
20
|
6.
3 + 2 =
5
4
|
7.
7 + 5 =
12
6
|
8.
4 + 6 =
10
14
|
|
9.
7 + 8 =
7
15
|
10.
3 + 11 =
14
11
|
11.
6 + 9 =
2
15
|
12.
4 + 3 =
7
8
|
|
13.
4 + 7 =
9
11
|
14.
3 + 14 =
2
17
|
15.
19 + 0 =
4
19
|
16.
11 + 2 =
13
1
|
|
17.
14 + 5 =
12
19
|
18.
14 + 0 =
14
11
|
19.
11 + 6 =
12
17
|
20.
5 + 15 =
12
20
|